rename CFG_TUSB_MEM_SECTION to CFG_TUD_MEM_SECTION in device stack

CFG_TUD_MEM_SECTION is default to CFG_TUSB_MEM_SECTION

src/portable/nxp/khci/dcd_khci.c

@@ -114,7 +114,7 @@ typedef struct
 // INTERNAL OBJECT & FUNCTION DECLARATION
 //--------------------------------------------------------------------+
 // BDT(Buffer Descriptor Table) must be 256-byte aligned
-CFG_TUSB_MEM_SECTION TU_ATTR_ALIGNED(512) static dcd_data_t _dcd;
+CFG_TUD_MEM_SECTION TU_ATTR_ALIGNED(512) static dcd_data_t _dcd;
 
 TU_VERIFY_STATIC( sizeof(_dcd.bdt) == 512, "size is not correct" );